4. |x + 6| = 19
5. 11|x - 9| = 121
6. 5 |x + 4| = 45
2006-07-12 19:54:03 · 11 answers · asked by No One! 2 in Science & Mathematics ➔ Mathematics
4. |x + 6| = 19
x+6=19 or x+6=-19
x=13 or x=-25
5. 11|x - 9| = 121
|x - 9| =11
x-9=11 or x-9=-11
x=20 or x=-2
6. 5 |x + 4| = 45
|x + 4| =9
x+4=9 or x+4=-9
x=5 or x=-13
It is my pleasure to help you.
2006-07-13 02:53:13 · answer #1 · answered by Anonymous · 0⤊ 0⤋
easy.
|x + 6| = 19
-19 < x + 6 < 19 (add -6 in all sides)
-25 < x < 13
x = ( -25, 13)
11|x - 9| = 121 (divide by 11)
|x-9| = 11
-11 < x-9 < 11
-2 < x < 20
x=(-2, 20)
the third one will be solved just like the ones above. Oke?
2006-07-13 03:06:10 · answer #2 · answered by johnoodles 2 · 0⤊ 0⤋
4.
| x+6 | = 19
=|x+6| ^2=19^2
=x+6=361
=x=361-6
So X=355
5.
11| x - 9 | = 121
Solving step
11| x - 9 | = 121^2
11( x - 9 ) = 14641
11x - 1089 = 14641
11x = 14641+1089
11x=15730
so x=15730/11
X = 1430.
6.
5| x + 4 | = 45
solving step
5| x + 4 |^2 = 45^2
5( x + 4 ) = 2025
5x + 20 = 2025
5x = 2025 - 20
5x = 2005
So x = 401.
2006-07-13 03:32:40 · answer #3 · answered by mohanbiotech 1 · 0⤊ 0⤋
|x + 6| -6 =19-6
x=13
11|x - 9| / 11 = 121/11
x-9=11
x-9+9=11+9
x=20
5 |x + 4| /5= 45/5
x+4=6
x+4-4=6-4
x=2
2006-07-13 03:03:26 · answer #4 · answered by MICHAELANGELLO 2 · 0⤊ 0⤋
4.
x+6=19
x=19-6
x=13
x-6=19
-x+6-6=19+6
-x=25
-x*-1=25*-1
x=-25
13+6=19
-25+6=19
5.
11|x-9|=121
11/11|x-9|=121/11
|x-9|=11
x-9+9=11+9
x=20
11|-x+9|=121
11/11|-x+9|=121/11
-x+9=11
-x+9-9=11-9
-x=2
-x*-1=2*-1
x=-2
11*20-9=121
11*11=121
11*|-2-9|=121
11*|-11|=121
11*11=121
6.
5 |x + 4| = 45
5/5|x+4|=45/5
|x+4|=9
x+4-4=9-4
x=5
5 |-x - 4| = 45
5/5|-x-4|=45/5
|-x-4|=9
-x-4+4=9+4
-x=13
-x*-1=13*-1
x=-13
5*(5+4)=45
5*9=45
5*|-13+4|=45
5*|-9|=45
5*9=45
so...
4. x=13, x=-25
5. x=20, x=-2
6. x=5, x=-13
check ya later â¥
2006-07-13 05:49:34 · answer #5 · answered by ♥ The One You Love To Hate♥ 7 · 0⤊ 0⤋
4. if x>-6 then x+6>0 hence x+6=19 => x=13
if x<-6 then x+6<0 hence x+6= -19 => x= -25
therefore x=13 and -25
5. similarly Ix-9I=11
therefore x=20 if x>9
and x=-2
therefore x=20 and -2
6. x=5 if x>-4
and x=-13 if x<-4
therefore x=5 and -13
2006-07-13 04:07:04 · answer #6 · answered by abhinav 2 · 0⤊ 0⤋
hint:l l this is the sign of absolute value
1.
X+6=19
x=19-6
x=13
2.
lx-9l=121/11
x-9=11
x=11+9
x=20
3.
lx+4l=45/5
x+4=9
x=9-4
x=5
2006-07-13 03:05:05 · answer #7 · answered by Anonymous · 0⤊ 0⤋
4.x=-25 , x=13
5.x=-112 , x=130
6.x=41 , x=-49
2006-07-13 05:25:35 · answer #8 · answered by arash b 3 · 0⤊ 0⤋
sol- Ix+6I =19
x=19-6
x=13
sol- 11Ix-9I = 121
Ix-9I = 121\11
x-9=11
x=11+9
x=20
sol- 5Ix+4I = 45
Ix+4I= 9
x=9-5
x=5
2006-07-13 03:11:46 · answer #9 · answered by Harry 1 · 0⤊ 0⤋
4. x = 19 - 6
5. x = (121/11) + 9
6. x = (45/5) - 4
I failed my maths.....hee hee
2006-07-13 03:00:40 · answer #10 · answered by tldec 1 · 0⤊ 0⤋